Blood measuring instrument



FIG. 1 is a perspective view of the blood measuring instrument from above a right front side thereof;

FIG. 2 is a top plan view of the blood measuring instrument of FIG. 1;

FIG. 3 is a bottom plan view of the blood measuring instrument of FIG. 1;

FIG. 4 is an elevational view of the left side of the blood measuring instrument of FIG. 1;

FIG. 5 is an elevational view of the right side of the blood measuring instrument of FIG. 1;

FIG. 6 is an elevational view of the front of the blood measuring instrument of FIG. 1; and,

FIG. 7 is an elevational view of the rear side of the blood measuring instrument of FIG. 1.

The broken lines in FIGS. 3 and 4 are included for the purpose of illustrating portions of the blood measuring device that form no part of the claimed design. 

CLAIM The ornamental design for a blood measuring instrument, as shown and described. 